Uma udlala umculo, kunzima ukumboza wonke amabhendi amafrikhwensi ngesipika esisodwa kuphela ngenxa yomthamo kanye nokulinganiselwa kwesakhiwo sesipikha.Uma yonke ibhendi yefrikhwensi ithunyelwa ngqo ku-tweeter, mid-frequency, kanye ne-woofer, “isiginali eyeqile. ” lokho okungaphandle kokusabela kwemvamisa kweyunithi kuzothinta kabi ukutholwa kwesignali kubhendi yefrikhwensi evamile, futhi kungase kulimaze i-tweeter kanye ne-mid-frequency.Ngakho-ke, abaklami kufanele bahlukanise ibhendi yefrikhwensi yomsindo ibe izingxenye ezimbalwa futhi basebenzise izipikha ezihlukene ukuze badlale amabhendi amafrikhwensi ahlukene.Lona umsuka nomsebenzi we-crossover.

Icrossoverfuthi "ubuchopho" besikhulumi, esidlala indima ebalulekile ezingeni lekhwalithi yomsindo.I-crossover "ubuchopho" kuzipikha ze-amplifier ibalulekile kukhwalithi yomsindo.Okukhipha umsindo kusuka kusikhulisamandla.Kumele icutshungulwe yizingxenye zokuhlunga ku-crossover ukuze kudlule amasignali amafrikhwensi athile eyunithi ngayinye.Ngakho-ke, kuphela ngokuklama ngokwesayensi nangokunengqondo i-crossover yesipikha lapho izici ezihlukene zamayunithi esipikha zingashintshwa kahle futhi inhlanganisela ithuthukiswe ukwenza izipikha.Khipha amandla aphezulu, okwenza impendulo yemvamisa yebhendi ngayinye ishelele futhi isigaba sesithombe somsindo sinembe.

Kusukela kumgomo wokusebenza, i-crossover iyinethiwekhi yokuhlunga eyakhiwe ngama-capacitor nama-inductors.Isiteshi esine-treble sidlula kuphela amasiginali wefrikhwensi ephezulu futhi sivimbe amasignali amaza aphansi;isiteshi se-bass siphambene nesiteshi esinyakazayo;isiteshi sobubanzi obumaphakathi yisihlungi se-band-pass esingadlula kuphela amaza phakathi kwamaphoyinti amabili e-crossover, elilodwa eliphansi neliphezulu.

Izingxenye ze-passive crossover zenziwe nge-L/C/R, okungukuthi, i-L inductor, i-C capacitor, ne-R resistor.Phakathi kwabo, i-L inductance.Isici ukuvimba ama-frequency aphezulu, inqobo nje uma ama-frequencies aphansi edlula, ngakho-ke kubizwa nangokuthi isihlungi se-low-pass;izici ze-C capacitor ziphambene nje ne-inductance;i-resistor engu-R ayinaso isici sokusika imvamisa, kodwa ihloselwe amaphoyinti emvamisa ethile futhi Ibhendi yefrikhwensi isetshenziselwa ukulungisa, ijika lokulinganisa, nokwanda nokuzwela kokuzwela.

Ingqikithi ye-ai-passive crossover iyinkimbinkimbi yamasekhethi amaningi okuhlunga amaphasi aphezulu naphansi.Ama-crossovers angabonakali abonakala elula, anemiklamo ehlukene nezinqubo zokukhiqiza.Izokwenza i-crossover ikhiqize imiphumela ehlukene kuzikhulumi.